Globe and Esperanto Museum

The Globe Museum of the Austrian National Library is the only one of its kind in the world. Housed in the historical Palais Mollard, it presents some 250 valuable terrestrial and celestial globes from the 16th century to modern times, as well as globes of the Earth’s moon and various planets, and instruments of which globes are an integral part, such as planetaria, telluria and lunaria.

- In addition to regular globes, there were also folding, inflatable and mountable globes for special purposes?
- There are also globe clocks and pocket globes?

The Esperanto Museum of the Austrian National Library is one of the most significant of its kind worldwide: It presents not only a large collection of media and objects in and about Esperanto, the world's most successful planned language, but also countless other invented languages, such as Klingon from the TV cult series “Star Trek”. 

- Esperanto was forbidden by both the Nazi and the Communist regimes but is still spoken by several million people today.
- So-called natural languages like German or English have many words of artificial origin? For example, the words “gas” or “cinema” were invented to describe things that did not initially exist in the language.
- Famous people like Francis Bacon, René Descartes and Gottfried Leibnitz were interested in planned languages as well?